Positions
Win rate of each bucket position, per map and player count. "Fair" is what a perfectly balanced position would get.
Pens
Fair win rate depends on the player count of each game, so compare each pen to its own "fair" column.
Inks
Judged by results, not by contact (a working push magnet is never touched, and a line can steer the opponent without meeting a ball). Winners' / Losers' ink: average share of their ink spent on it. Tinted Difference: winners clearly lean on it more (blue) or less (red). Win rate counts players who spent at least 20% of their ink on it.
Tools
Spawns
Where balls from each spawn point actually ended up, with players' lines in play.
Game flow
Players
Skill check: if one player wins a lot and always picks the same pen, that pen's numbers are about the player, not the pen.
Manage data
Remove games or players by hand. This can't be undone: download the raw data first if you might want it back. Ratings are worked out again right after.